TDG Mafia # 81
Join Date: Jan 2009
Location: Fort Wayne, IN
Thanked 26 Times in 24 Posts
What you are descibing sounds like the filter housing has gone bad.
There is a one way check valve that prevents the pressure from bleeding off while the engine is off. This check valve cannont be replaced as it is a non service part of the housing. Therefore you would need a new housing. I would diagnose this further before throwing parts at it. Hope this helps,
2001 GMC 2500HD EC/LB, 4X4. A few go fast goodies. 540hp/1107tq Danville Dyno 11/09, Kennedy 40% injectors.
05 IH 9400i with Cummins ISX pulling a lumber bunk trailer, stuck in a swamp somewhere in Indiana.
Proud Veteran Served 6yrs Active Army From Germany, Kuwait and Bosnia to Ft. Hood and Ft. Knox